Emrakul Brood- Evolve to deal with challenges

There wasn't enough left of these minds to be saved. There was no subtlety in his mental assault; he grabbed ahold of their senses and overloaded each one—blinding light, deafening sound, smells so intense they choked on them. It wasn't pretty, but he needed to establish a foothold here for when the others arrived.

Two of the werewolves whimpered and fell; they twitched, and then went still. The last of the three...laughed? He could feel its mind changing, adapting, growing in response to the assault. The mental connection broke, and he watched as the creature's skin rippled, its limbs lengthened, its claws elongated, and its skin oozed. Jace stumbled backward. Whatever he had done had triggered some sort of reflexive mutation. Now, he wasn't even sure what he was looking at.

(Battle of Thraben)